How to repair the led lamp when it burns out?
The second is to change the lamp beads, when we find that the led lamp beads are burnt out, we can then buy a lamp bead of approximate power. Then we can change the lamp beads. Finally, the overall replacement of led lights, the so-called overall replacement, is that we need to remove all the led lights.
LED lamp damage, in general to lamp beads damage as the most common failure, if so, directly to replace the LED lamp beads on it.
First turn off the power, remove the lampshade of the led lamp with the help of the herringbone ladder, and check its damage. If the bulb is damaged, just remove the bulb and replace it with a new one of the same model. However, if its constant current drive circuit is damaged, this must be handled by a professional repairman.
Led lamp is broken how to repair first turn off the switch, and then remove it to analyze the reason. If the internal lamp tube has been damaged, it is recommended that you replace the lamp tube; if the lamp joint contact is bad, tighten the joint; if the ballast burns out, you need to replace the ballast.
The repair method for the broken led lamp is as follows: we can first replace the power driver of a led lamp, for this power adapter, we can buy the same model. Then remove the wires connected to the left and right, then replace the drive, and see if it can be lit properly. The second is to change the lamp beads.
The voltage at home is so low that the fluorescent lamp is burnt out. What should I do?
1. Replace the rectifier and use the electronic rectifier, which can work in the range of 180Mel 250V without the glow starter and turn on the light immediately. This is the solution once and for all, but it will cost dozens of yuan more.
2. The shunt capacitor only increases the power factor of the inductive load and can not play a role in the low voltage of the line. A more effective way is to replace the inductive ballast of the fluorescent lamp with an electronic ballast, which can start normally near the city voltage of 180V.
3, the electricity voltage is too low, when the voltage is 200 volts, it is difficult to start. It is recommended to use AC voltage regulator for power supply. The glow starter is aging. The fluorescent tube is aging, and the blackening at both ends of the lamp is more serious. The filament in the lamp tube is burnt out, it is recommended to replace the lamp tube. The contact of the lamp pin is poor, so it is recommended to clean the oxide of the pin contact point.
4. Contact and disconnect the two wires like the car thief in the movie (be sure to be fast! ) in this way, the person will replace the role of the starter, which is very dangerous. Another way is to replace the ballast (with different power). In fact, you can connect capacitors in parallel, but it is easy to find the permittivity, which is not very good.
5. If the fluorescent lamp uses an electromagnetic ballast, it can start smoothly as long as a 1-3A rectifier diode is connected in series in the starting circuit. The above is the easiest way. Regardless of the cost, it is best to have a fully automatic voltage regulator.
What if the light bulb explodes and the electricity in the house is all cut off?
The light bulb blew up the treatment that the electricity at home was completely cut off. The first step: turn off the main gate. Step 2: remove the exploded light bulb. Step 3: use a multimeter to adjust the diodes to measure the poles of the bulb and replace the new bulb. Step 4: use the multimeter to check whether there are other short circuits in the home circuit and find out other short circuit points.
First of all, it is clear that the problem of power outage is caused by the light bulb or the switch. Turn off all the main gates on the main power supply in the home.
Emergency plan: immediately close the main gate, remove the explosion light, turn off the explosion light separately, then open the main gate, and then open the separate switch of another line where there is no explosion, whether there is electricity, if there is electricity, it means that the main line is normal.
Power outage. Then remove the broken light bulb. Put in a new light bulb. Then press the anti-leakage button and close the air switch to see if the power transmission is normal. If it is. The normal power supply indicates that the light bulb is tripped due to a short circuit. If it is not normal, please ask the professional to check the specific situation on the spot.
The broken light bulb causes the corresponding empty opening in the electric box to trip, so it is possible to solve the problem of closing the light bulb and closing the switch in the electric box. If it can not be solved, that is, when the light bulb fails, the cable that is not connected when it is installed is broken, and the fault point of the junction box that dismantles the bad light is inside, and everything will be normal if you connect the disconnect.
Turning on the lights at home suddenly led to a power outage in the house and the light bulb needed to be changed. Because of the quality problem of the bulb, the bulb was originally filled with inert gas, which played the role of protecting the resistance wire in the bulb, causing the bulb to accidentally enter the air. The air expands rapidly at the moment the light is turned on, causing the light bulb to explode.
How to solve the problem of burning led lights all the time?
1, in view of the above reasons, how should we solve if the quality of the LED chip is unstable, when we buy a LED lamp, it is best to choose a larger chip, which can improve its heat resistance, reduce the heat dissipation conditions, and the longer the service life will be. If it’s a drive power supply.
2. If there is an intermittent output transition, it indicates that it is conventional, and if there is no output or 12v output all the time, it indicates that the near-light relay has long been damaged and must be replaced with a new one.
3. Led lamp beads often burn may be due to abnormal replacement of near-light relays. The following is the relevant information about LED light beads: basic definition: LED lamp beads is the abbreviation of LED, which is a popular name.
4. LED lamp board, the wick has a short circuit and burns out the power supply; the design of the LED lamp power driver module is unreasonable; the selection quality of the LED lamp power driver module is poor, and the component breakdown is burnt out; the voltage of the local power supply is high; frequent switching of LED lights in a short time is also easy to burn out the power supply.
5. For such a failure, it is necessary to prepare a soldering iron to take off the burnt lamp beads and replace them. If there is no lamp bead, it must be replaced by a resistance of about 150, which can avoid the phenomenon of short circuit. The power supply system of LeD lamp beads is unstable, and the failure of the filter capacitor will lead to voltage instability.
The light bulb in the kitchen burnt out, so that the lights in the whole room went out. What should I do?
The lights in the kitchen are short-circuited, causing the air switch to trip, so there is no electricity in the whole kitchen; fix the short-circuit light bulb, find the air switch that belongs to the kitchen, and close it.
First check to see if the main gate trip is caused by a damaged light bulb or energy-saving lamp short circuit. Next, when the main switch is turned off, remove the blown light bulb with a tool. When checking the fault, it is necessary to pay attention to that the main switch must be in the off state.
First of all, it is clear that the problem of power outage is caused by the light bulb or the switch. Turn off all the main gates on the main power supply in the home.
There may be energy-saving lamps, broken short circuit, leading to tripping, we have to see if it is tripping, if not, then remove this lamp and then power on to see if the other lights are on, if it is not, it is likely that there is something wrong with the circuit. This lamp holder is connected with other lights and needs to check the line.
The lights between the rooms are connected in series and the lights between the room and the room are connected in parallel. The series connection method is that once a lamp is burned, the series circuit is disconnected, all the lights are disconnected, and the connection method is that a light is disconnected without affecting the normal power supply of other lights. The solution is to change all the lights in the room to parallel connection.
Checking whether the light bulb burns out is one of the main reasons why the lamp is not lit. If the light bulb burns out, it needs to be replaced. Before changing the bulb, you need to check whether the bulb is burnt out. Reinstall the light bulb and screw on the lampshade. If the light bulb burns out, it needs to be replaced.
How to repair the led lamp when it burns out?
Lamp bead damage, may be the problem of the power supply at home, need to reseat the power supply; there is the capacitive resistance step-down module damage, the need to replace a new one. / LeD lamp beads damage is a very common phenomenon, when burnt out, there will be black spots on the surface, which can be seen by careful observation.
LED lamp damage, in general to lamp beads damage as the most common failure, if so, directly to replace the LED lamp beads on it.
First turn off the power, remove the lampshade of the led lamp with the help of the herringbone ladder, and check its damage. If the bulb is damaged, just remove the bulb and replace it with a new one of the same model. However, if its constant current drive circuit is damaged, this must be handled by a professional repairman.
